Blizzard announced a while back that Hearthstone: Heroes of Warcraft would soon receive its first substantial expansion in the form of Curse of Naxxramas. The publisher has somewhat narrowed the release window for this expansion, noting that it will arrive in July.
"Just wanted to give everyone a head's up that we are currently targeting to release Curse of Naxxramas during the month of July," said Hearthstone community manager Aratil on the game forums. "Unfortunately, we still have a lot of implementing and bug fixing to get through, so please stay tuned!"
Naxxramas will add 30 new cards, along with a single-player campaign. Aratil adds that pricing details will be revealed on Tuesday, July 1. However, like Arena, players will have the option to pay with in-game gold, continuing Hearthstone's dedication to its free-to-play model.